If you see this message, it doesn't mean you're in a jurisdiction prohibited by Cloudbet. It means the game's provider isn't available in your jurisdiction.
Why this happens
Cloudbet works with various game providers, and each provider sets its own list of countries where its games can be played. Even in a fully supported Cloudbet jurisdiction, an individual game provider may choose not to make some or all of its games available there.
What you can do
Try a similar game from another provider. For example, if a Pragmatic Play slot like Gates of Olympus is unavailable, look for a similar slot game from Play'n GO, NetEnt, or Hacksaw Gaming.